DS

Donald C. Simpson

DI Dresser Industries: 4 patents #60 of 787Top 8%
FB Fox Boro: 1 patents #86 of 212Top 45%
🗺 Massachusetts: #17,885 of 88,656 inventorsTop 25%
Overall (All Time): #767,288 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
5257639 Electropneumatic positioner Robert Claude Prescott, Philip H. Sanford, Howard W. Nudd, Jr. 1993-11-02
5159949 Electropneumatic positioner Robert Claude Prescott, Philip H. Sanford, Howard W. Nudd, Jr. 1992-11-03
RE33028 Electropneumatic transducer system 1989-08-22
D291917 Disposable cushion pad for intra-oral X-ray films 1987-09-15
D290652 Cushion pad for intra-oral X-ray films 1987-06-30
4527583 Electropneumatic transducer system 1985-07-09
RE31416 Electric signal transmitter for vibrating-wire sensor Everett O. Olsen, David A. Richardson 1983-10-18